Ruding or Raiding: How To spell?

The word Ruding is misspelled against Raiding, which is present continuous of "Raid"

Word contains consecutive vowels 'AI' in between alphabets r & ding is misspelled as 'U'
Wrong Spelling:  r-u-ding 
Correct Spelling:  r-ai-ding 
Check more misspelled words of Raiding to spell it correct.

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